Adjustable shelf support



FIG. 1 is a front perspective view of an adjustable shelf support showing my new design, the rear being identical;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, both sides being identical;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a sectional view taken in the direction of the arrows on line 6--6 of FIG. 2. 

The ornamental design for an adjustable shelf support, as shown. 